The most effective methods of birth control are sterilization by means of vasectomy in males and tubal ligation in females, intrauterine devices (IUDs) and implantable contraceptives. This is followed by a number of hormonal contraceptives including oral pills, patches, vaginal rings, and injections.
Strongyloides StronÂ·gyÂ·loiÂ·des (strÅn'jÉ-loi'dÄz) n. A genus of small nematode intestinal parasites that includes the species that causes strongyloidiasis in humans.
Sorghastrum nutans. Indiangrass redirects here. It may also refer to other members of the genus Sorghastrum.. Sorghastrum nutans, commonly known as either Indiangrass or yellow Indiangrass, is a North American prairie grass found in the central and eastern United States and Canada, especially in the Great Plains and tallgrass prairies. Contents.